G01N 27/4165
For ph meters
Official title: {for pH meters}
G01N27/4165 (For ph meters) appears on 177 US grants and 134 published applications in this corpus.
Search patents in G01N- Granted patents
- 177
- Published applications
- 134
- Assignees
- 110
- Inventors
- 392
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 9 | 0 |
| 1985 | 3 | 0 |
| 1986 | 4 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 6 | 0 |
| 1990 | 3 | 0 |
| 1991 | 7 | 0 |
| 1992 | 5 | 0 |
| 1993 | 7 | 0 |
| 1994 | 5 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 4 | 3 |
| 2003 | 0 | 4 |
| 2004 | 0 | 3 |
| 2005 | 2 | 1 |
| 2006 | 0 | 2 |
| 2007 | 3 | 2 |
| 2008 | 0 | 5 |
| 2009 | 2 | 3 |
| 2010 | 1 | 1 |
| 2011 | 5 | 5 |
| 2012 | 2 | 3 |
| 2013 | 3 | 2 |
| 2014 | 3 | 3 |
| 2015 | 4 | 11 |
| 2016 | 3 | 3 |
| 2017 | 3 | 4 |
| 2018 | 3 | 8 |
| 2019 | 6 | 10 |
| 2020 | 7 | 15 |
| 2021 | 8 | 10 |
| 2022 | 10 | 6 |
| 2023 | 9 | 11 |
| 2024 | 7 | 8 |
| 2025 | 8 | 9 |
| 2026 | 8 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- pH meter calibration and correction8 Sep 2026US 12,730,090 B2Regeneron Pharmaceuticals, Inc.
- Identification of calibration deviations of pH-measuring devices21 Jul 2026US 12,686,844 B2Hoffman-La Roche Inc.
- pH sensor measurement23 Jun 2026US 12,663,393 B2Georg Fischer Signet LLC
- System and method for self-calibrating of ion selective electrodes based on differential voltage measurement16 Jun 2026US 12,656,306 B2Purdue Research Foundation
- Probe chamber for inline measurements2 Jun 2026US 12,644,854 B2Merck Patent GmbH
- Electrochemical process measurement arrangement17 Sep 2026US 2026/0276582 A1Hach Lange GmbH
- Measurement device for determining a constituent of a fluid sample23 Jul 2026US 2026/0210897 A1ProMinent GmbH
- Calibration apparatus, calibration method, and non-transitory computer-readable recording medium27 Nov 2025US 2025/0362267 A1Yokogawa Electric Corporation
- Sensing element for use with media-preserving storage and calibration chamber30 Oct 2025US 2025/0334543 A1
- Measurement apparatus and measurement method25 Sep 2025US 2025/0297978 A1Yokogawa Electric Corporation
Most cited
By later US patents
- Method of making an electrochemical sensing cell204US 4,534,825 ACordis Europa N.V. · 1985
- Universal sensor cartridge for use with a universal analyzer for sensing components in a multicomponent fluid186US 5,004,583 AMedTest Systems, Inc. · 1991
- Electrochemical sensing apparatus with in situ calibration143US 4,478,222 ACordis Europa N.V. · 1984
- Apparatus and methods for sensing fluid components138US 4,946,562 AMedTest Systems, Inc. · 1990
- Disposable self-calibratable electrode package82US 4,871,439 A1989